Omega Seamaster Seamaster Master Co-Axial 39.5 Singapore Edition Stainless Steel / White / Alligator

Reference 511.13.40.20.04.002

Omega Seamaster Master Co-Axial 39.5 Singapore Edition Stainless Steel / White / Alligator

About this watch

The Omega Seamaster Master Co-Axial 39.5 Singapore Edition is a masterpiece of horology, boasting exceptional craftsmanship and a unique story tied to the vibrant city of Singapore. This limited edition watch combines modern technology with classic design, making it a versatile companion for both formal and casual occasions. The stunning white dial features a glossy finish, stick and dot indexes, and Feuille hands that ensure readability while maintaining a sleek profile. The 39.5 mm stainless steel case strikes a perfect balance between boldness and wearability, paired with an alligator leather strap that enhances its luxurious feel. With a water resistance of up to 60 meters, this watch is more than just a pretty face, handling splashes and brief immersion while maintaining accuracy and performance even in challenging conditions. The Omega Seamaster Master Co-Axial 39.5 Singapore Edition stands tall in the realm of luxury watches, its blend of sophistication, precision, and limited availability making it a worthy addition to any collection.
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Key Features

  • Omega caliber 8800 self-winding movement
  • Co-Axial escapement reducing friction for longevity and reliability
  • 55-hour power reserve
  • Chronometer certified by Swiss Federal Institute of Metrology (METAS)
  • Resistant to magnetic fields up to 15,000 gauss
  • Stainless steel case with sapphire crystal glass
  • 39.5 mm diameter with 20 mm lug width
  • White dial with glossy finish and stick/dot indexes

Specifications

Brand
Omega
Family
Seamaster
Model
Seamaster Master Co-Axial 39.5 Singapore Edition Stainless Steel / White / Alligator
Reference
511.13.40.20.04.002
Movement
8800
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 39.5mm
Dial Color
White
Crystal
Sapphire
Water Resistance
60

Current Listings

[WTS] Omega Seamaster Blue Ceramic Wave Dial 42mm Box & Papers 210.30.42.20.03.001

Omega Seamaster Blue Ceramic Wave Dial 42mm Box & Papers 210.30.42.20.03.001

Omega - 210.30.42.20.03.001 · $4,599
A modern icon done right, featuring a striking blue ceramic wave dial paired with a matching ceramic bezel. Powered by Omega’s METAS-certified Caliber 8800, this piece offers exceptional accuracy and a 55-hour power reserve.

  • Condition: Excellent overall condition with light signs of careful wear
  • Case size: 42mm diameter
  • Movement: Caliber 8800, METAS-certified
  • Water resistance: unknown
Posted at
Apr 1, 2026, 12:03 PM
Active
View listing on r/WatchExchange
[WTS] 1970 Omega Seamaster ref. 168.024 w/ Chronometer Cal. 564 on original ref. 2038 Milanese mesh bracelet – $1,380 shipped

1970 Omega Seamaster ref. 168.024 w/ Chronometer Cal. 564 on original ref. 2038 Milanese mesh bracelet – $1,380 shipped

Omega - 168.024 · $1,138
This is a fully original Seamaster with all the right details still in place, powered by the chronometer-rated Cal. 564 and paired with its original Omega Milanese mesh bracelet ref. 2038.

  • Condition: Good condition with minor aging visible under macro, light hairline scratches consistent with age
  • Movement: Chronometer Omega Cal. 564
  • Case material: Stainless steel
  • Bracelet type: Original and period-correct Omega Milanese mesh bracelet ref. 2038
Posted at
Apr 1, 2026, 11:56 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Planet Ocean 600M

Omega Seamaster Planet Ocean 600M

Omega - Planet Ocean 600M · $3,500
This Omega Seamaster Planet Ocean 600M is a modern icon in Omega's diver lineup, running flawlessly within its Master Chronometer specifications.

  • Condition: Excellent
  • Case material: Stainless steel
  • Diameter: 43.5 mm
  • Bezel type: Unidirectional rotating ceramic ZrO2
Posted at
Apr 1, 2026, 11:03 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Aqua Terra 2504.50 - 36 mm - Watch, Box, Authenticity Card - $2780 USD + Shipping

Omega Seamaster Aqua Terra 2504.50 - 36 mm - Watch, Box, Authenticity Card - $2780 USD + Shipping

Omega - 2504.50 · $2,780
This Omega Seamaster Aqua Terra is a 36mm black dial watch with automatic caliber 2500, featuring minor scuffs from careful wear.

  • Condition: Excellent overall condition with minor scuffs
  • Diameter: 36mm
  • Case size: 36mm
  • Caliber: Omega Caliber 2500
Posted at
Apr 1, 2026, 8:48 AM
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[WTS] Omega Seamaster Diver 41mm 212.30.41.20.03.001 | 2018 Complete Set

Omega Seamaster Diver 41mm 212.30.41.20.03.001 | 2018 Complete Set

Omega - 212.30.41.20.03.001 · $3,575
2018 Omega Seamaster Diver 41mm in excellent pre-owned condition with slight wear on polished parts of the case and bracelet.

  • Condition: Excellent Pre-Owned Condition
  • Case size: 41mm
  • Bracelet links: 12.5 Links + Divers Extension
  • Service history: Unknown
Posted at
Mar 31, 2026, 10:33 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Aqua Terra 231.10.39 38.5mm Quartz White Dial - $1,890

Omega Seamaster Aqua Terra 231.10.39 38.5mm Quartz White Dial - $1,890

Omega - 231.10.39.60.02.001 · $1,890
This is a Omega Seamaster Aqua Terra watch with a quartz movement and a white dial, measuring 38mm in diameter.

  • Condition: Very good condition for its age, with minimal marks/hairlines
  • Case size: 38mm
  • Movement: Omega 1538 quartz
Posted at
Mar 31, 2026, 10:01 PM
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[WTS] Omega Seamaster 2503.30 Champagne Dial 39mm - $2,290

Omega Seamaster 2503.30 Champagne Dial 39mm - $2,290

Omega - 2503.30 · $2,290
Up for sale is my great condition Omega Seamaster 2503.30, a 39mm watch with an automatic Omega Calibre 2500 movement.

  • Condition: Very good condition for its age (8.9/10)
  • Case size: 39mm
  • Movement: Omega Calibre 2500
Posted at
Mar 31, 2026, 9:51 PM
Active
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[WTS] Omega Seamaster Planet Ocean 2201.50 42mm Box and Card - $3,150

Omega Seamaster Planet Ocean 2201.50 42mm Box and Card - $3,150

Omega - 2201.50 · $3,150
Up for sale is my great condition Omega Seamaster Planet Ocean 2201.50, measuring at 42mm and featuring an automatic Omega Calibre 2500 movement.

  • Condition: Very good condition for its age with minimal marks/hairlines on the case, caseback, and bracelet
  • Case size: 42mm diameter
  • Movement type: automatic
  • Bracelet length: up to 7-7.25 inch wrists
Posted at
Mar 31, 2026, 9:31 PM
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[WTS] Omega Seamaster Aqua Terra 231.10.39 38.5mm Grey Teak Quartz, Box and Papers - $1,999

Omega Seamaster Aqua Terra 231.10.39 38.5mm Grey Teak Quartz, Box and Papers - $1,999

Omega - 231.10.39.61.06.001 · $1,999
This Omega Seamaster Aqua Terra is a great condition quartz watch measuring at 38mm, featuring an Omega 1538 movement, steel case, and original Omega steel bracelet.

  • Condition: Very good condition for its age
  • Case size: 38mm diameter
  • Movement type: quartz
Posted at
Mar 31, 2026, 9:28 PM
Active
View listing on r/WatchExchange